3749778 has 24 divisors (see below), whose sum is σ = 8324316. Its totient is φ = 1219200.

The previous prime is 3749773. The next prime is 3749807. The reversal of 3749778 is 8779473.

It can be written as a sum of positive squares in 2 ways, for example, as 2934369 + 815409 = 1713^2 + 903^2 .

It is not an unprimeable number, because it can be changed into a prime (3749771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1803 + ... + 3278.

Almost surely, 2^3749778 is an apocalyptic number.

3749778 is an abundant number, since it is smaller than the sum of its proper divisors (4574538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3749778 is a wasteful number, since it uses less digits than its factorization.

3749778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130 (or 5127 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 3749778 is about 1936.4343521018. The cubic root of 3749778 is about 155.3585594345.

The spelling of 3749778 in words is "three million, seven hundred forty-nine thousand, seven hundred seventy-eight".